package com.lize;

public class test01 {


    public static void main(String[] args) {

    }
}
interface IA <A,B>{


    public void fly(A n);
    public default A run(){

     return  null;

    }



}
interface UA extends IA<String ,Double>{




        }
        class Aa implements UA{


            @Override
            public void fly(String n) {

            }

            @Override
            public String run() {
                return null;
            }
        }